Anyone who has worked with Unity 3D and Blender 3D or other software must convert an FBX file from Ascii to binary or vice versa.
You can find a project with this tool on this GitHub project.
This is how this tool works:
FbxFormatConverter.exe -c Player001.fbx -o BinPlayer001.fbx -binary
Success!
In: C:\Third2PersonCharacterController\Assets\Player001.fbx
Out (binary): C:\Third2PersonCharacterController\Assets\BinPlayer001.fbx
You can use the -ascii to convert to FBX ascii format file.